On Single Click Open External URL and Write record in DB

There's no out-of-box way to combine these two operations - a!safeLink() has no overlap in functionality with links that kick off internal processing (dynamic link, start process link, etc). 

I suppose it might be possible for Appian to add some additional parameters to a!safeLink() to do some additional actions on click of the link, if enough people request it, but you'd be waiting a long time for this.  Generally I suggest this requires better user expectations-setting.

Mike - Thanks for the Reply, How to request Appian through a support ticket?

If you can create an Appian support request for your organization's account, you can just open a regular ticket and clarify in the title and description that you're requesting a feature addition, and provide details as to your customer requirements (including justification for why the current workaround(s) are insufficient).  This will at least allow them to get such functionality on their development backlog, though in my experience the turnaround time for such things is ... long.

If you can create an Appian support request for your organization's account, you can just open a regular ticket and clarify in the title and description that you're requesting a feature addition, and provide details as to your customer requirements (including justification for why the current workaround(s) are insufficient).  This will at least allow them to get such functionality on their development backlog, though in my experience the turnaround time for such things is ... long.

I would  create a request Thank you Mike Schmitt